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    New Intex sand filter backwash, rinse &, sight glass issue

    I have a new Intex 12 in sand filter. When I backwash and rinse before I turn on the pump it is a tight flow of water not a full gush of the line like my old one. when I turn on the pump it's in high-pressure spray and not a solid flow. almost like you're putting your thumb over the end of a...